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Page 4

Connections

1. Before plugging in the power cord, make sure that the 

VOLTAGE

SELECTOR (29) 

switch is set to the correct voltage.

NOTE

NOTE

NOTE

NOTE

NOTE: This product is double insulated and not intended

to be grounded.

2. Make sure that the 

POWER (25)

 switch is in the off position. The

POWER LED (26)

 will be off.

3. The PDM-10 is supplied with 3 sets of amp output jacks. The

 MAIN

OUTPUT (31)

 jacks are unbalanced and used to connect to your

main amplifier. The 

REC OUTPUT (32) 

jacks can be used to connect

the mixer to the record input of your recorder enabling you to record
your mix. The 

BOOTH OUTPUT (30) 

jacks allow you to hook up an

additional amplifier.

4. For your convenience, there are 2 inputs for the mic. The 

MIC (1)

input (found on the front panel) accepts an XLR connector.

 

The

 MIC

(44)

 input (found on the rear panel) accepts 1/4" connectors. All

accept balanced and unbalanced microphones.

5. On the rear panel are 3 stereo 

PHONO/LINE (35, 38, 41) 

inputs and

5 stereo

 LINE (33, 34, 37, 40, 43) 

inputs. The 

PHONO/LINE

 

SWITCH

(36)

 enables you to set the 

(35) 

input to Phono or Line. The 

PHONO/

LINE

 

SWITCH (39)

 enables you to set the 

(38) 

input to Phono or

Line. The 

PHONO/LINE

 

SWITCH (42)

 enables you to set the 

(41)

input to Phono or Line. The phono inputs will accept only turntables
with a magnetic cartridge. A 

GROUND SCREW (45)

 for you to

ground your turntables is located on the rear panel. The stereo line
inputs will accept any line level input such as a CD player, a
cassette player, etc.

6. Headphones can be plugged into the front panel mounted

HEADPHONE (28)

 jack.

Using the Ground Lift Switch

Depending on your system configuration, sometimes applying the
ground will create a quieter signal path. Sometimes lifting the ground
can eliminate ground loops and hum to create a quieter signal path.

1. With the mixer on, listen to the system in idle mode (no signal

present) with the ground applied (the 

GROUND LIFT

 

SWITCH (46)

in the left position).

2.

Then turn the power off before moving the GROUND LIFT
SWITCH (46)

. Lift the ground by moving the 

GROUND LIFT SWITCH

to the right, turn the power back on and listen to determine which
position will provide a signal devoid of background noise and hum.
Keep the 

GROUND LIFT

 

SWITCH 

in the ground position if the noise

level remains the same in either position.

CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWER
MIXER IN ANY WAY. TERMINATION OF THE AC GROUND CAN BE
HAZARDOUS.

Operation

1. POWER ON: Once you have made all the equipment connections to

your mixer, press the 

POWER SWITCH (25)

. The power will turn on

and the 

POWER LED (26)

 will glow RED.

2. CHANNEL 1: Switch # 

(7)

 allows you to select  the 

PHONO 1/LINE 2

(41) 

or the 

LINE 1 (43) 

input. The

 CHANNEL SLIDE (8)

 controls the

input level of this channel.

3. CHANNEL 2: Switch # 

(9)

 allows you to select the 

PHONO 2/LINE 4

(38) 

or the 

LINE 3 (40)

 input. The

 CHANNEL SLIDE

 

(10)

 controls the

input level of this channel.

4. CHANNEL 3: Switch # 

(11)

 allows you to select the 

PHONO 3/LINE 6

(35) 

or the 

LINE 5 (37)

 input. The

 CHANNEL SLIDE

 

(12)

 controls the

input level of this channel.

5. CHANNEL 4: Switch # 

(13)

 allows you to select the 

LINE 7 (34) 

or

the 

LINE 8 (33)

 input. The

 CHANNEL SLIDE

 

(14)

 controls the input

level of this channel.

6. CROSSFADER SECTION: The 

CROSSFADER (16)

 allows the mixing

of one source into another. The PDM-10 features an assignable
crossfader. The 

ASSIGN (15, 17) 

switches allow you to select

which channel will play through each side of the crossfader. The

ASSIGN (15) 

switch has 5 settings (OFF, 1, 2, 3 or 4) and allows

you to  select channel 1, 2, 3 or 4 to play through the left side of the
crossfader.

 

The 

ASSIGN (17)

 switch has 5 settings (OFF, 1, 2, 3 or

4) and allows you to  select channel 1, 2, 3 or 4 to play through the
right side of the crossfader. With the 

ASSIGN

 switch in the off

position, that side of the crossfader will be inactive. The

CROSSFADER (16)

 in your unit is removable and if the need arises

can be easily replaced. Crossfader units are available in three
varieties. Part # RF-45 (which is identical to the crossfader supplied
with the mixer) has a 45 mm travel from side to side. Part # RF-30 is
available with a 30 mm travel distance. Also available is the PSF-45
with a special curve designed for scratch mixing. Just purchase
one of these crossfader units from your Gemini dealer and follow
these instructions:

1. Unscrew the outside FADER PLATE SCREWS (B). Do not

touch the INSIDE SCREWS (C).

2. Carefully lift the fader and unplug the CABLE (D).

3. Plug the new fader into the cable and place it back in the

mixer.

4. Screw the fader to the mixer.

7. OUTPUT CONTROL SECTION: The level of the 

MAIN AMP OUT (31)

is controlled by the

 MASTER (23)

 slide. The Master 

TREBLE (20)

and 

BASS (21)

 controls allow you to adjust the output of channels 1

- 4. The 

BOOTH (27)

 control adjusts the level of the 

BOOTH

OUTPUT (30). 

HINT: The booth output is used by some DJs to run

monitor speakers in their DJ booth. You can also use it as a second
ZONE or AMP output.

NOTE

NOTE

NOTE

NOTE

NOTE: The  RECORD OUT (32) 

RECORD OUT (32) 

RECORD OUT (32) 

RECORD OUT (32) 

RECORD OUT (32) has no level control.

The level is set by the channel slides of the selected

channel.

8. TALKOVER SECTION: The purpose of the talkover section is to allow

the program playing to be muted so that the mic can be heard above
the music. The 

MIC/TALKOVER SWITCH (5)

 has three settings.

When the 

MIC/TALKOVER SWITCH (5)

 is in the bottom position, the

mic and talkover are both off.  When the 

MIC/TALKOVER SWITCH

(5)

 is in the center position the mic is on, the 

MIC INDICATOR (6)

will glow, but talkover is off. When the 

MIC/TALKOVER SWITCH (5)

is in the top position, the mic and talkover will be on and the volume
of all sources except the Mic input are lowered by 16 dB. The

TREBLE (2)

 and 

BASS (3)

 controls allow you to fully adjust the tone

of the MIC. 

LEVEL (4)

 controls the level of the MIC.

Summary of Contents for PDM-10

Page 1: ...p Mixer CONTENT S Connections Operations Page 2 5 Specifications Page 5 Parts Lists Page 5 6 PCBs Page 7 8 Schematics Page 9 10 Gemini Sound Products Corp 120 Clover Place P O Box 6928 Edison NJ 08818 6928 732 738 9003 Phone 732 738 9006 Fax ...

Page 2: ...Page2 1 2 3 4 5 6 7 8 9 15 10 11 20 17 18 13 23 16 14 25 28 24 27 18 18 18 19 21 22 12 26 ...

Page 3: ...Page3 30 30 29 31 31 32 32 33 33 34 34 35 35 37 37 38 38 40 40 41 41 46 36 45 39 42 43 43 44 ...

Page 4: ... 38 or the LINE 3 40 input The CHANNEL SLIDE 10 controls the input level of this channel 4 CHANNEL 3 Switch 11 allows you to select the PHONO 3 LINE 6 35 or the LINE 5 37 input The CHANNEL SLIDE 12 controls the input level of this channel 5 CHANNEL 4 Switch 13 allows you to select the LINE 7 34 or the LINE 8 33 input The CHANNEL SLIDE 14 controls the input level of this channel 6 CROSSFADER SECTIO...

Page 5: ...3 564 049 206 159 167 159 216 159 171 146 710 102 007 102 025 110 172A 111 043A 111 044A 111 046A 111 049A 111 050 111 051A 111 053A 131 081 PANEL CONTROL PANEL REAR COVER BOTTOM BRACKET VR HOLDER X FADER PROTECTOR PLATE FOR 115 230V SWITCH SWING LEVEL KNOB PUSH SMALL BUSHING FOR KNOB SMALL KNOB SLIDE SMALL KNOB SLIDE BIG KNOB ROTARY ASSIGN KNOB ROTARY B KNOB INLAY BLACK LEVEL BALANCE CUE KNOB INL...

Page 6: ...9 003 080 104 080 103 080 091 RECTIFIER DIODE 1N4002 1N4003 1N4004 SILICON DIODE 1N4148 LIGHT EMITTING DIODE GREEN 3 15f LIGHT EMITTING DIODE YELLOW 3 15f LIGHT EMITTING DIODE RED 3 15f D26 30 D32 33 D6 17 D18 D21 D22 25 D31 Designators Description Part Diodes Item 1 2 3 4 5 092 078 161 117 072 035 072 092 071 104 071 084 PHONE JACK 6 3f 2P RCA JACK P 14mm SLIDE VR 45mm L 20 CH VOL MASTER 50KA 2 S...

Page 7: ......

Page 8: ......

Page 9: ...R4A 50KAX2 VR4B 50KAX2 R21 36K SW6A SW6B SW12A SW12B SW12C SW12D R57 24K R50 24K R30 24K R22 24K VR6A 50KAX2 C20 10 16 R51 36K R65 4K7 R54 36K R55 36K D3 LED 12 R52 36K SW9A SW9B VR6B 50KAX2 VR7A 50KAX2 R39 24K R25 24K R82 24K R73 24K R74 36K R88 4K7 R77 36K R78 36K D4 LED 12 R75 36K SW11A SW11B VR7B 50KAX2 R38 24K R24 24K R96 24K R97 24K R100 36K R105 4K7 R102 36K R103 36K D5 LED 12 R99 36K SW14A...

Page 10: ...R139 160K R152 10K R156 8K2 C97 10 16 C88 4 7 16 C118 10 16 C101 10 16 C90 4 7 16 C121 10 16 R168 10 12 R171 27 R172 27 R173 27 R174 27 C89 22 16 R111 300 R120 150 R117 47K L R G J10 C86 10 16 C87 10 16 R136 10K R140 10K R126 51K R138 10 R133 10 IC10A 4558 C104 56 C105 22 16 C117 22 16 12 12 C102 22 16 R153 51K R134 51K IC10B 4558 C113 56 C100 22 16 R154 51K VR10B 20KBX2 VR10A 20KBX2 VR11A 50KA VR...

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